A must-watch talk by Stephen Petranek, recently released on TED. He discusses the ways the world could end, and how those ways could be avoided.

One thing I really like about the talk is that it shows that even these big problems can be solved (some relatively easily). Even problems like an asteroid hitting earth could be solved, and we are close to knowing how to solve it. Also, it’s an intriguing look at problems that most of us don’t think of.

As he mentions in his talk, “You can’t have solutions if you don’t have problems.”

What problems are you solving today?